A guard has been arrested on suspicion of drink-driving and has been suspended from duty.
It follows a collision on the M3 yesterday morning.
Gardai in Navan in Co Meath attended the scene of a single vehicle collision on the M3 yesterday morning at around half-ten.
The collision involved an unmarked official Garda car with one occupant.
The driver - a member of An Garda Síochána - was arrested at the scene on suspicion of driving under the influence of an intoxicant.
A criminal investigation into breaches of the road traffic act is currently ongoing.
An internal disciplinary investigation has also begun, and the guard has been suspended from duty.
